25 divided by 21 7/8
25 ÷ 21 7/8= 25/1 ÷ 175/8= (25 × 8) / (175 × 1)= 200/175= 8/7 or 1 1/7
25 divided by 21 7/825 divided by 175/825 times 8/175200/1751 1/7